Brush.



T. F. BARRY.

BRUSH.

APPLICATION FILED FEB. 18. 1913.

Patented Aug. 3, 1915.

Iii.

UNITED e ra THOMAS F. BARRY, 0F NEWARK, NEW JERSEY, ASSIGNOR 'IO RUBBER& CELLULOID HARNESS TRIMMING CO., OF NEWARK, NEW JERSEY, .A CORPORATIONOF NEW JERSEY.

BRUSH.

Application filed. February 18, 1913.

To all whom it may concern:

Be it known that I, TnoMAs F. BARRY, a citizen of the United States anda resident of Newark, in the county of Essex and State of New Jersey,have invented certain new and useful Improvements in Brushes, ofwhich'the following is a specification.

, The invention relates more particularly to the class ofbrushes inwhich the head or bristle carrying part of the brush is detachablysecured to the back connected with the handle, and my invention residesin the novel construction hereinafter described and claimed having forits object the provision of a brush in which the head may beconveniently and very rigidly connected with the back and replaced byanother head whenever desired.

I contemplate making the handle and back of metal, such as gold orsilver, and the head of a metal inner plate and an outer plate which maybe of material not likely to tarnish, as celluloid or other plasticmaterial, through which plates the tufts of bristles are threaded andwhich tufts at their knot ends are secured in a bed of rub hervulcanized thereon and on said metal plate. The brush-back has a cavityor recess to receive the head, and the metal plate of said head has aspecially formed outer end adapted to the outer end of the cavity and toengage the inner wall of the back of the brush. At their inner ends themetal plate and outer celluloid plate are formed with correspondingtongues to seat within a recess formed in the adjoining portions of thehandle and back and against a concealed filler block, within whichrecess and against which filler block said tongues may be cured by aslidable ring on the handle.

Referring to the drawings: Figure 1 is an edge view of a tooth brushconstructed in accordance with my invention; Fig. 2 an,

edge view of the back and handle and of the brush-head separated fromeach other and ready to be brought together or assembled, Fig. 3 abottom view of the completed brush,

Fig. 4: a bottom view, partly broken away and partly in longitudinaltransverse section, of the back and handle, the outline of the inner endof the metal plate of the brush-head being represented by dotted linesso. as to indicate the relation thereof with the filler block concealedin the handle,

Specification of Letters Patent.

Patented Aug. 3, 1915.

Serial No. 749,072.

Fig. 5 a vertical longitudinal section, on a larger scale, through theback portion of the brush, a portion of the handle being broken away,Fig. 6 a vertical transverse section through the same on the dotted line6-.6 of Fig. 5, and Fig. 7 a section corresponding with Fig. 5 butshowing a slightly modified construction.

In the drawings 10 designates the back and 11 the handle of the brush,said parts preferably being in one rigid body of suitable material,preferably sheet metal, and said back having a conveXly curved outer endwall 12 and convexly curved side walls 13, the lower edges of said wallsbeing turned inwardly, as shown in Figs. 5 and 6, and defining an oblongopening leading into a recess or cavity within and conforming to theoutline of the back 10 and adapted to receive the brush-head 14. Uponthe adjacent portions of the back and handle is a slidable locking-ring15 of known character, and within the said portions is a filler-block16, said portions being recessed at the lower side thereof, as at 17, toexpose a portion of said block to receive certain portions of the brushhead hereinafter described.

The brush-head 1% comprises, in the preferred embodiment thereof, aninner metal plate 18, an outer plate or veneer 19 of celluloid. or otherplastic or not readily tarnishable material, afscries of tufts 20 ofbristles whose knot-ends are inserted through openings in said platesand extend beyond the upper surface of the plate 18, and a body 21 ofrubber heat-vulcanized on the plate '18 and inner ends of the tufts ofbristles and securing said tufts.' The plates 18, 19, except at thefront end of the plate 18, correspond in outline and are inface to facecontact with each other, and at the inner end of said plates are formedtongues 22-, 23, respectively adapted to snugly fill the aforesaidrecess 17, the tongue 22 hearing against the filler 16 and the tongue23being flush with the adjacent exposed lower walls of the 'back 10, asshown in Figs. and 6, and is flush with said edges, thereby imparting tothe brush a finished appearance and leaving no rough or exposed edges toinjure the mouth. The outer end of the plate 18, Which preferably setswithin the recess in the back, curls outwardly upwardly and inwardly, asat 25, to engage the inner surface of the outer end wall of the back 10and also the lower surface of the top of said back. this being for thepurpose of assuring the rigid relation of the brush-head to the back. Itis intended that the body of hard rubber 21 or such other material asmay be employed for setting the tufts of bristles, shall bear againstthe lower surface of the back 10 and addstability to the brush as awhole, but in order to guard against any irregularity in the uppersurface of the body 21, whereby it might not engage the lower surface ofthe back 10, I provide the extension 250n the plate 18 so as to engagenot only the endof the back, but a lower. surface of said back 'andthereby rigidly maintain the outer end of the head in rigid relation tothe back. The extension fits within the convex surface presented by theend wall 12 of the back and prevents the front end of the head frombeing loose within the back. The edges of thcplate 19 fit snugly withinthe 'inturned edges of the end and side walls of 'the back 10 and inthat way serve to center the head within the back and resist lateralstrains which might otherwise tend to move the head laterally. The

tongues on the plates '18, 19 fit within the recess 17 formed thereforand they also serve to center the head within the back, and the factthat the filler 16 is provided to take the pressure of the tongues 22,23, adds to the stability and eiliciency of the brush. Inv applying thebrush head to the brush back, the outer end of the head is with theother end thereof tilted downwardly, inserted into the end of the brushback and thereupon the body of the head is pressed upwardly into saidback and there secured by sliding the ring 15 over the tongues 22, 23.When a brush head is to be replaced by a new one or is to be removed forany purpose, the ring 15 is slid outwardly to about the position shownin Fig. 2 and thereupon the head may be removed from the back, theoutward pulling strain being applied to the inner end of said head so asto tilt the outer end of the head from over the shoulder afforded by thecurved end wall 12 of the brush back.

' I prefer to employ both the metal plate 18 and. celluloid plate 19 inthe manufacture of the heads and to locate the plate 19 flush Within theedges of the sides and end of the back 10, but I may construct the headin the manner shown in Fig. 7 in whic a he inner metal plate numbered,being a modification,

26, is offset from the end extension 2 thereof to set flush within thelower edges of the sides and end of the back 10 so that said plate maytake the end and side thrusts which 'n'iight in the use of the brushotherwise tend to shift the head Within the back.'

I show a plate 28 of plastic material or other coating substance on thelower surface of the plate 26, bl do notlimit the invention toconstruction shown in Figs. 1 to 6 inclusive.

My invention may be embodied in a brush having a back and handle of anysuitable material, but I contemplate the production of an expensivebrush inwhich the back and handle may be of gold or silver or othermetal. Brushes having detachable heads have long been known, and hencemy invention is directed to a special cofiperative construction of backand head permitting of the convenient detachment of the head and thevery secure and eilicient connection of the head. with the back.

What I claim as my invention and desire to secure by Letters Patent, is:

1. A brush comprising a sheet metal back and a handle, said back havinga recess in its lower side and conveXly curved outer end and side wallswhereby the edges of the metal along said recess are carried inwardlyfrom a position in which they might otherwise injure the mouth of theuser of the brush, a removable brush head carrying the hristlesandadapted to said recess and having at its front end a part to extend overthe inturned front end of said back and at its rear end a tongue, andmeans for securing said tongue and thereby detachably fastening saidhead, said head comprising a plate which fits flush within the inturnededges of the said back at the-front end and sides of said recess.

2. A brush comprising a back and handle. said back having a closedintegral back and edgeportions and a recess in its lower side and anin-turned lower front edge, a re-' movable brush head carrying thebristles adapted to said recess and comprising an in recess and a rearrecess and at its front end.

an in-turned edge, a removable brush head carrying the bristles adaptedto said main recess and having a rear tongue fitting said rear recessand said head, comprising an inner metal plate extended above said frontLia-8,55%

edge and an outer covering plate concealing: said metal plate, and meansfor securing said tongue in its recess.

-l. A brush comprising a back {1115: handle, said back having in itslower side a main recess and a rear recess and at its front end anill-turned edge, a removable brush heed carrying the bristles adapted tosaid main. recess and having a rear tongue fitting said rear recess andsaid head comprising an innermetal plate extended above saicl fmnt edgeand an outer covering plate concealing said metal plate, and means forsecuring said tongue in its recess, said outer plate fitting flushWithin the lower edges of said- 15 main. and rear recesses.

Signed at New York city, in the county of New York and State of NewYork, this 17th day of February, A. D. 1913.

THOMAS F. BARRY.

Witnesses ARTHUR MARION, @HAS. C. GILL.

